DNSWHOIS.INFO - 173.21.72.in-addr.arpa

Search for IP or hostnames:

173.21.72.in-addr.arpa checked at 2025-10-17T04:05:04.137Z 1318ms 82/82/82 100% R:11

`173.21.72.in-addr.arpa`

NS	`barbara.ns.cloudflare.com`
		A	2606:4700:50::adf5:3af8 ^{🇺🇸 Cloudflare}
			PTR	`barbara.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f8 ^{🇨🇷 Cloudflare}
			PTR	`barbara.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f8 ^{🇺🇸 Cloudflare}
			PTR	`barbara.ns.cloudflare.com`
		A	108.162.192.248^{🇺🇸 Cloudflare}
			PTR	`barbara.ns.cloudflare.com`
		A	172.64.32.248^{🇺🇸 Cloudflare}
			PTR	`barbara.ns.cloudflare.com`
		A	173.245.58.248^{🇺🇸 Cloudflare}
			PTR	`barbara.ns.cloudflare.com`
NS	`ram.ns.cloudflare.com`
		A	2606:4700:58::adf5:3be1 ^{🇺🇸 Cloudflare}
			PTR	`ram.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1e1 ^{🇨🇷 Cloudflare}
			PTR	`ram.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21e1 ^{🇺🇸 Cloudflare}
			PTR	`ram.ns.cloudflare.com`
		A	108.162.193.225^{🇺🇸 Cloudflare}
			PTR	`ram.ns.cloudflare.com`
		A	172.64.33.225^{🇺🇸 Cloudflare}
			PTR	`ram.ns.cloudflare.com`
		A	173.245.59.225^{🇺🇸 Cloudflare}
			PTR	`ram.ns.cloudflare.com`

`21.72.in-addr.arpa`

Up

51.173.21.72.in-addr.arpa

Starts with same word

173.in

173.com.ua

173.tw

173.ir

173.com.tw

173.com

173.hu

173.by

173.cz

173.chat

173.cl

173.us

173.la

173.one

173.host

173.org

173.biz

173.net

173.jp

173.co

173.fr

173.nl

173.eu

173.ca

173.cool

173.hk

173.cn

173.dk

173.de

173.io

173.me

173.in-addr.arpa

173.tv

Starts similarily

713.me

371.cz

317.limo

317.is

173.cl

173.us

713.eu

371.tv

731.eu

317.net

137.info

137.ro

137.de

731.net.cn

173.la

317.nl

137.ca

713.pl

731.de

713.in

137.co

317.us

317.com

137.org

371.company

173.one

317.it

173.host

317.ch

317.run

371.de

137.es

137.hu

173.org

173.biz

137.me

731.dk

137.nl

173.net

137.city

137.in-addr.arpa

173.jp

713.biz

713.mobi

317.today

731.com

317.tv

173.co

731.cn

137.ph

731.tv

317.ie

173.fr

137.by

713.ru

317.gr

173.nl

317.ink

173.eu

731.me

173.ca

173.cool

173.hk

173.cn

173.dk

137.be

137.com

173.de

713.de

137.dk

137.it

731.co.uk

173.io

173.me

137.ink

137.pl

371.com

731.cz

137.rehab

713.cn

173.in-addr.arpa

371.cn

317.de

713.dk

173.tv

137.tv

173.in

317.ru

173.com.ua

371.biz

173.tw

731.co

713.city

137.cl

713.co.jp

713.ir

137.co.jp

317.cn

371.la

137.hk

AI analysis

The parent of 51.173.21.72.in-addr.arpa is 173.21.72.in-addr.arpa.

Two name servers barbara.ns.cloudflare.com and ram.ns.cloudflare.com handle the delegation for 173.21.72.in-addr.arpa.

173.21.72.in-addr.arpa shares the same name server setup as other domains, for example 162.21.72.in-addr.arpa, 176.21.72.in-addr.arpa, 72.231.208.in-addr.arpa, 187.21.72.in-addr.arpa and zipwerk.de.

173.21.72.in-addr.arpa at least partially shares name servers with other domains, for example prezi.expert, 123xlink.com, tewksburytransit.com, sentezyumhost.com and dallel.com.

These name servers are often used together with rodney.ns.cloudflare.com and alaric.ns.cloudflare.com.

Host names with six IP numbers:

barbara.ns.cloudflare.com points to 2606:4700:50::adf5:3af8, 2803:f800:50::6ca2:c0f8, 2a06:98c1:50::ac40:20f8, 108.162.192.248, 172.64.32.248 and 173.245.58.248.

ram.ns.cloudflare.com points to 2606:4700:58::adf5:3be1, 2803:f800:50::6ca2:c1e1, 2a06:98c1:50::ac40:21e1, 108.162.193.225, 172.64.33.225 and 173.245.59.225.

dbq